|
warning device : 48 phrases in 12 subjects |
| Automated equipment | 3 |
| Communications | 4 |
| Construction | 1 |
| Electronics | 3 |
| Immigration and citizenship | 1 |
| Life sciences | 1 |
| Medical appliances | 3 |
| Natural resourses and wildlife conservation | 1 |
| Natural sciences | 1 |
| Rail transport | 1 |
| Technology | 2 |
| Transport | 27 |